نتایج جستجو برای: amplitude reduction ratio

تعداد نتایج: 1040310  

Journal: :علوم کاربردی و محاسباتی در مکانیک 0
کیانوش یوسفی سیدرضا صالح

in this study, the effect of suction and the parameters such as suction amplitude, suction coefficient and suction jet length on naca0012 was evaluated. the turbulence employed model was the rsm model. suction jet is located in 10% of the chord length. the range of suction jet entrance velocity was selected from 0.1 to 0.5 of freestream velocity. the maximum increase in lift to drag ratio was s...

Journal: :Brain : a journal of neurology 1996
C Krarup W Trojaborg

Pathophysiological changes in sensory fibres in chronic acquired demyelinating neuropathy (CADP) are poorly understood, and it is not known to what extent sensory loss may be due to axonal loss or to conduction block. Motor and sensory nerve condition were studied in 18 patients with CADP to delineate abnormalities in the compound sensory action potential (CSAP) recorded proximally along the li...

Journal: :Physical review. E, Statistical, nonlinear, and soft matter physics 2001
J Y Chen K W Wong H Y Zheng J W Shuai

We have studied phase synchronization between two identical Rössler oscillators connected in the drive-response configuration by a single phase signal. Before the transition to phase synchronization, the distribution of the time interval between consecutive 2pi jumps shows several sharp peaks. With a strong phase signal coupling, the n:m phase synchronization between the oscillators can be achi...

Journal: :international journal of nano dimension 0
m. falahaty naghibi school of mechanical enginnering, shahid rajaee teacher training university, tehran, iran. m. rahimi-esbo young researchers and elite club, buin zahra branch, islamic azad university, buin zahra, iran. r. mohammadyari young researchers and elite club, buin zahra branch, islamic azad university, buin zahra, iran. k. mobini school of mechanical enginnering, shahid rajaee teacher training university, tehran, iran.

using of nanofluids and ducts with corrugated walls are both supposed to enhance heat transfer, by increasing the heat transfer fluid conductivity and the heat transfer area respectively. use of a diverging duct with a jet at inlet section may further increase heat transfer by creating recirculation zones inside the duct. in this work two-dimensional incompressible laminar flow of a nanofluid e...

Journal: :acta medica iranica 0
saeid farahani department of audiology , school of rehabilitation, tehran university of medical sciences,tehran,iran. masoud motasaddi zarandy department of otolaryngology, school of medicine, tehran university of medical sciences, tehran, iran. and ent research center, tehran university of medical sciences, tehran, iran. gholamreza hassanzadeh department of anatomy, school of medicine, tehran university of medical sciences, tehran, iran. farzad shidfar school of health, iran university of medical sciences, tehran, iran. shohreh jalaie department of biostatistics, school of rehabilitation, tehran university of medical sciences, tehran, iran. vida rahimi department of audiology, school of rehabilitation, tehran university of medical sciences, tehran, iran.

the biological effects of omega-3 and omega-6 fatty acids are determined by their mutual interactions. this interaction extremely affects various functions. lower consumption of omega-3 during gestation leads to various disorders, even in hearing. we aimed to assess the effect of low omega-3/omega-6 ratios on auditory nerve conduction. in this experimental study, the auditory brainstem response...

Journal: :IEICE Transactions 2008
Haris Gacanin Fumiyuki Adachi

OFDM combined with TDM (OFDM/TDM) can be used to reduce a high peak-to-average power ratio (PAPR) of OFDM, but the PAPR reduction is not sufficient. To further reduce the PAPR, an amplitude clipping can be applied. In this letter, we investigate the effect of clipping on OFDM/TDM with and without channel coding. It is shown that amplitude clipped OFDM/TDM has an advantage over clipped OFDM with...

2013
R. Gayathri V. Sangeetha S. Prabha D. Meenakshi N. R. Raajan

Absract -In recent years, OFDM has gained a lot of interest in diverse-digital communication applications. This has been due to its favorable properties like high spectral efficiency and robustness to channel fading. Some of the major drawbacks in OFDM are its high peak-to-average-power ratio(PAPR) of the transmitted signals and the synchronization of signals. OFDM consist of large number of in...

Journal: :Journal of the American College of Cardiology 1984

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